Function isAbortError

common/src/util/error.ts:153–172

(error: unknown)

 * - Native AbortError (thrown by fetch/AI SDK when AbortSignal is triggered)
 */
export function isAbortError(error: unknown): boolean {
  if (!(error instanceof Error)) {
    return false
  }
  // Check for our custom abort error message:
  // - Exact match: 'Request aborted'
  // - With reason: 'Request aborted: <reason>' (from AbortError class)
  if (
    error.message === ABORT_ERROR_MESSAGE ||
    error.message.startsWith(`${ABORT_ERROR_MESSAGE}: `)
  ) {
    return true
  }
  // Check for native AbortError (DOMException or Error with name 'AbortError')
  // This is thrown by fetch, AI SDK, and other web APIs when AbortSignal is triggered
  if (error.name === 'AbortError') {
    return true
  }
  return false
}

/**
 * Unwrap a PromptResult, returning the value if successful or throwing if aborted.